Swage for dental crown-plates and similar articles.



c. BAUHE.

SWAGE FOR DENTAL GROWN PLATES AND SIMILAR ARTICLES.

APPLIOATION FILED JUNE 7,1907.

rut Mann's FITE'R! cm. \yAlmuarniw, n. t.

PATBNTED SEPT. 24, 1907.

CARL RAUHE, OF DUSSELDORF, GERMANY.

SWAGE FOR DENTAL GROWN-PLATES AND SIMILAR ARTICLES.

Specification of Letters Patent.

Patented Sept. 24, 1907.

Application filed June 7. 1907. Serial No. 377,704.

To all whom it may concern:-

Be it known that I, CARL RAUHE, a citizen of Germany, residing atDusseldorf, Germany, have invented new and useful Improvements in Swagesfor Dental Crown-Plates and Similar Articles, of which the follow ing isa specification.

This invention relates to a swage by which dental crowns, plates, capsand similar articles may be rapidly and accurately shaped.

In the accompanying drawing: Figure 1 is a vertical section of myimproved swage on line 1 1, Fig. 2, and Fig. 2 a plan.

The swage is composed essentially of a lower threaded mold-section 3,and an upper cup-shaped mold-section 4 adapted to be screwed uponsection 3. Section 3 has an inverted conical bore which is open at thebottom and which is filled by the correspondingly-shaped die 5, theupper surface of which conforms in shape to the shape which is to beimparted to the dental plate. Block 3 is set into a perforated baseplate 6, to which it is removably secured by a dowel 7. Through the topof upper mold-section 4 extends a vertical bore 8 adapted for thereception of a plunger 9. This plunger has a head 10 provided withspanner-hole 11 and with a threaded section 12 adapted to engage acorresponding thread 13 formed in the upper part of bore 8.

Upon the die-block 5 is supported the dental plate or other article 14,to be shaped, and upon this article is superposed a piece of waxedtextile fabric 15. The mold is filled above plate 14, with a pressuretransmitting medium 16, adapted to transmit the force exerted by theplunger uniformly to the entire surface of the Stents composition hasthe quality of cooling rapidly without destroying the cast. Thedie-block being thus formed, mold-sectioni, is righted and secured toits base 6, while the cast is removed. Upon die-block 5 is placed plate14 to be shaped, which is covered by sheet 15. Mold-section 3 is nowfilled with plastic rubber 16, upper mold-section 4 is screwed down uponsection 3, and bore 8 is also partly filled with plastic rubber.

The swage being thus prepared, plunger 9 is screwed down, so as tocompress the soft rubber and cause the latter to uniformly force plate14 against the die, so as to shape the plate in the manner desired. Bymaking the bore of the lower mold-section coni-form, the die 5 willremain centered within said mold and will always find a support upon thesame, even after shrinkage.

I claim:

A device of the character described, comprising a lower threadedmold-section having an inverted coniform opening, a die within saidopening, an upper perforated moldsection engaging the lower section, aplunger engaging the upper section, and a soft rubber filling within themold interposed between the plunger and die, substantially as specified.

Signed by me at New York city, (Manhattan); N. Y., this 6th day of June,1907.

CARL RAUHE.

Witnesses FRANK BRIESEN, ARTHUR E. ZUMPn.

